Spherical lithium adsorbent as well as preparation method and use thereof

A spherical lithium adsorbent, wherein a particle size of the spherical lithium adsorbent is in a range from 100 μm to 1000 μm, and wherein a preparation method of the spherical lithium adsorbent comprises:

• dry mixing an adsorbent and a forming agent followed by evenly mixing with a first solvent to form a mixed solution, and adding a thickening and pore forming agent to obtain a mixed system;
• extracting the mixed system using an extraction device to be input into a first inlet of the spray device, and introducing a gas into a second inlet;
• and
• spraying out the mixed system from a nozzle of a spray device and receiving sprayed drips using a second solvent as a receiving solvent so that a solid-phase spherical lithium adsorbent is obtained via a phase conversion;
• wherein
• the adsorbent is one or more selected from the group consisting of a lithium titanium ion sieve, an aluminum based adsorbent, a lithium manganese ion sieve, graphite powders, and a graphene oxide;
• the forming agent is one or more selected from the group consisting of polyvinyl chloride, polyethersulfone, polyvinyl acetate, polyformaldehyde, polyamide, polysulfone, and polyimide;
• and
• the thickening and pore forming agent is one or more selected from the group consisting of hydroxyethyl cellulose, carboxymethyl cellulose, polyethylene glycol, and sodium alginate.